//計(jì)算收盤價(jià)的均價(jià),一個(gè)常數(shù)參數(shù),表示計(jì)算周期
//調(diào)用方法:
// MYMACLOSE(5)

__declspec(dllexport) int WINAPI MYMACLOSE(CALCINFO* pData)
{
float f,fTotal;
int nPeriod,i,j;
if(pData->m_pfParam1 && //參數(shù)1有效
pData->m_nParam1Start<0 && //參數(shù)1為常數(shù)
pData->m_pfParam2==NULL) //僅有一個(gè)參數(shù)
{
f = *pData->m_pfParam1;
nPeriod = (int)f; //參數(shù)1
if(nPeriod>0)
{
for(i=nPeriod-1;i<pData->m_nNumData;i++) //計(jì)算nPeriod周期的均線,數(shù)據(jù)從nPeriod-1開始有效
{
fTotal = 0.0f;
for(j=0;j<nPeriod;j++) //累加
fTotal += pData->m_pData[i-j].m_fClose;
pData->m_pResultBuf[i] = fTotal/nPeriod; //平均
}
return nPeriod-1;
}
}
return -1;
}

__declspec(dllexport) int WINAPI MYMACLOSE_CALC_PREV(CALCINFO* pData)
{
if(pData->m_pfParam1 && pData->m_nParam1Start<0)
{
float f = *pData->m_pfParam1;
return ((int)f) - 1;
}
return 0;
}